fix: source map line mapping bug

[SyMind]

Summary

Close #9557
Related to web-infra-dev/rspack-sources#158

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

✅ Deploy Preview for rspack canceled.

Name	Link
🔨 Latest commit	e3b7277
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[codspeed-hq]

CodSpeed Performance Report

Merging #9712 will not alter performance

_{Comparing fix-source-map-line-bug (e3b7277) with main (0702704)}

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Summary

✅ 8 untouched benchmarks